OK, let's work through this together. We're starting with 228 and we're going to multiply it by 12, which means we add 228 to itself 12 times.
Step 1: 0 + 228 = 228
Step 2: 228 + 228 = 456
Step 3: 456 + 228 = 684
Step 4: 684 + 228 = 912
Step 5: 912 + 228 = 1140
Step 6: 1140 + 228 = 1368
Step 7: 1368 + 228 = 1596
Step 8: 1596 + 228 = 1824
Step 9: 1824 + 228 = 2052
Step 10: 2052 + 228 = 2280
Step 11: 2280 + 228 = 2508
Step 12: 2508 + 228 = 2736

So, 228*12 = 2736